Dog poop, cat litter, diapers, ostomy bags (for those who need them)… I am not willing to pick up dog crap with a paper or cloth bag! Although plastic bag bans might get rid of some bags, it would also mean that people who rely on plastic bags for waste disposal will be paying for plastic bags and more of those will be manufactured. There are some messy things that you just can’t dispose of in paper or cloth. And yes, I do use reusable cloth bags for groceries, but I still need plastic bags for some stuff!